Surgical retractor



FIG. 1 is a perspective front view of a surgical retractor showing my new design;

FIG. 2 is a right-side view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a back view thereof;

FIG. 8 is a perspective front view thereof shown in an environment;

FIG. 9 is a right-side view thereof;

FIG. 10 is a left-side view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a top view thereof;

FIG. 13 is a front view thereof; and,

FIG. 14 is a back view thereof.

The broken lines are directed to environment and form no part of the claimed design. 

CLAIM The ornamental design for a surgical retractor, as shown and described. 